742220688 has 40 divisors (see below), whose sum is σ = 2091714336. Its totient is φ = 224915200.

The previous prime is 742220683. The next prime is 742220729. The reversal of 742220688 is 886022247.

It is not an unprimeable number, because it can be changed into a prime (742220681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702333 + ... + 703388.

Almost surely, 2^742220688 is an apocalyptic number.

It is an amenable number.

742220688 is an abundant number, since it is smaller than the sum of its proper divisors (1349493648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742220688 is a wasteful number, since it uses less digits than its factorization.

742220688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405743 (or 1405737 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 742220688 is about 27243.7274982701. The cubic root of 742220688 is about 905.4080505765.

The spelling of 742220688 in words is "seven hundred forty-two million, two hundred twenty thousand, six hundred eighty-eight".